Le fichier PHP.INI

[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = UTC

Désactiver la limite de mémoire, utile pour composer

; Maximum amount of memory a script may consume (128MB)
; http://php.net/memory-limit
; memory_limit = 128M
memory_limit = -1

Il peut etre utile de le modifier, dans le cadre de plusieurs versions de PHP installée, par exemple

; Directory in which the loadable extensions (modules) reside.
; http://php.net/extension-dir
; extension_dir = "./"
; On windows:
; extension_dir = "ext"
extension_dir = "C:\Program Files\php\php-5.6.5\ext"

Ci-dessous les extensions a activer pour utiliser avec Symfony

;extension=php_bz2.dll
extension=php_curl.dll
;extension=php_fileinfo.dll
;extension=php_gd2.dll
;extension=php_gettext.dll
;extension=php_gmp.dll
extension=php_intl.dll
;extension=php_imap.dll
;extension=php_interbase.dll
;extension=php_ldap.dll
;extension=php_mbstring.dll
;extension=php_exif.dll      ; Must be after mbstring as it depends on it
;extension=php_mysql.dll
;extension=php_mysqli.dll
;extension=php_oci8_12c.dll  ; Use with Oracle Database 12c Instant Client
extension=php_openssl.dll
;extension=php_pdo_firebird.dll
extension=php_pdo_mysql.dll
;extension=php_pdo_oci.dll
;extension=php_pdo_odbc.dll
;extension=php_pdo_pgsql.dll
;extension=php_pdo_sqlite.dll
;extension=php_pgsql.dll
;extension=php_pspell.dll
;extension=php_shmop.dll